Link full download test bank for CDN ED human physiology 2nd edition by sherwood kell and ward

Test bank for CDN ED Human Physiology 2nd edition by
Lauralee Sherwood, Robert Kell and Christopher Ward
Chapter 2: Cell Physiology

MULTIPLE CHOICE
1.

Which component is NOT always found in a typical human cell? a. cytosol
b. DNA
c. flagellum
d. plasma membrane
ANS: C

2.

REF: 24

BLM: Remember

Which structure is NOT located in the cytosol of the cell?
a. ER
b. lysosome
c. mitochondrion
d. nucleolus
ANS: D

3.

PTS: 1

PTS: 1

REF: 25

BLM: Remember

Which organelle is NOT covered by a membrane?
Golgi body
lysosome
mitochondrion
ribosome

a.
b.
c.
d.

ANS: D
4.

REF: 25

BLM: Remember

Which statement concerning cells is NOT correct?
a. Cells serve as the living building blocks of the body.
b. The average human cell is about 100 times smaller than the smallest particle visible by the
unaided eye.
c. Inanimate chemical molecules are organized within each cell into a living entity.
d. Cells are generally colourless and transparent so they must be stained for visualization
under a microscope.

ANS: B

5.

PTS: 1

PTS: 1

REF: 23

BLM: Remember

Which statement regarding the plasma membrane is NOT correct?
a. It serves as a mechanical barrier to hold in the contents of the cell.
b. It selectively controls movement of molecules between the ECF and the ICF.
c. It contains proteins that provide receptor sites for membrane functions.
d. It has cholesterol to determine the fluidity of the membrane.
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Chapter 2: Cell Physiology

ANS: A
6.

PTS: 1

REF: 32

BLM: Remember

Which statement is correct for the rough endoplasmic reticulum?
a. It does not contain ribosomes.
b. It synthesizes proteins for export from the cell or for use in construction of a new cellular

membrane.
c. It is abundant in cells that specialize in lipid metabolism.
d. It is abundant in liver cells.
ANS: B
7.

PTS: 1

REF: 25

BLM: Remember

The rough ER is a membranous system. With what is it associated?
chromosomes
lysosomes
microfilaments
ribosomes

a.
b.
c.
d.

ANS: D
8.

REF: 25

BLM: Remember

Of the organelles below, which occurs in the lowest numbers within a typical human cell? a.
mitochondria
b. vaults
c. peroxisomes
d. nuclei
ANS: D

9.

PTS: 1

PTS: 1

REF: 24

BLM: Remember

REF: 24

BLM: Remember

What can be found within the nucleus?
a. deoxyribonucleic acid

b. cytosol
c. plasma membrane
d. endoplasmic reticulum
ANS: A

PTS: 1

10. Which statement is NOT correct regarding ribosomes?
a. They are composed of RNA.
b. They assemble polypeptides.
c. They may be bound to endoplasmic reticulum.
d. They are covered by a membrane.
ANS: D

PTS: 1

REF: 25

BLM: Remember

11. Which statement is correct for smooth endoplasmic reticulum?
a. It is most abundant in cells specialized for protein secretion.
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Chapter 2: Cell Physiology

b. It gives rise to transport vesicles containing newly synthesized molecules wrapped in a

layer of smooth ER membrane.
c. It consists of stacks of relatively flattened sacs called cisternae.
d. It has many ribosomes.
ANS: B

PTS: 1

REF: 25

BLM: Remember

12. Which structure is NOT associated with the secretion of proteins produced by ER? a. Golgi

complex
b. smooth ER
c. transport vesicles
d. lysosomal membrane
ANS: D

PTS: 1

REF: 25

BLM: Remember

13. Which statement is NOT correct regarding the Golgi complex?
a. It sorts and directs products to their final destination.
b. It modifies proteins chemically.
c. It produces secretory vesicles.

d. It is responsible for protein synthesis.
ANS: D

PTS: 1

REF: 53

BLM: Remember

14. Which of the following does NOT apply to lysosomes?
a. They contain powerful hydrolytic enzymes.
b. They generate hydrogen peroxide.
c. They remove useless parts of the cell.
d. They attack foreign materials engulfed by the cell by means of endocytosis.
ANS: B

PTS: 1

REF: 25

BLM: Remember

15. Which of the following refers to extrusion of materials to the exterior of the cell through the
plasma membrane? a. endocytosis
b. exocytosis
c. phagocytosis
d. pinocytosis
ANS: B

PTS: 1

REF: 53

BLM: Remember

16. Which of the following refers to the form of endocytosis in which whole cells such as
bacteria are brought in? a. exocytosis
b. pinocytosis
c. receptor-mediated endocytosis
d. phagocytosis
ANS: D

PTS: 1

REF: 51

BLM: Remember

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Chapter 2: Cell Physiology

17. What does the SNARE complex provide?
a. recognition of foreign proteins in the cell
b. binding of correct enzyme with correct substrate
c. means to deliver vesicles to an appropriate site
d. receptor-mediated endocytosis

ANS: C

PTS: 1

REF: 53

BLM: Higher Order

18. Which statement does NOT correctly characterize mitochondria?
a. They have an inner fluid filled space called the cristae.
b. They possess their own DNA.
c. They are the site for cell respiration.
d. Their inner membranes possess electron carriers.
ANS: A

PTS: 1

REF: 25

BLM: Remember

19. Where do the citric acid cycle reactions occur?
a. cytoplasm
b. cytosol
c. inner-mitochondrial membrane
d. mitochondrial matrix
ANS: D

PTS: 1

REF: 27

BLM: Remember

20. What accounts for the most ATP production?
a. Kreb’s cycle
b. citric acid cycle
c. NADH
d. electron transport and oxidative phosphorylation
ANS: D

PTS: 1

REF: 26

BLM: Higher Order

21. In aerobic respiration process of the cells, where is CO2 released?
a. during glycolysis
b. in the electron transport chain
c. during Kreb’s cycle
d. during fermentation
ANS: C

PTS: 1

REF: 31

BLM: Higher Order

22. What might happen if you did NOT get enough niacin in your diet?
a. Glucose would not be able to be cleaved.
b. Available FAD would decrease.

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Chapter 2: Cell Physiology

c. When the 3-carbon chain is oxidized in glycolysis, electrons would not be able to be

captured.
d. Only fermentation would be possible.
ANS: C

PTS: 1

REF: 27

BLM: Higher Order

23. What is the carbon-based end product (chain) of glycolysis?
a. NADH
b. ATP
c. pyruvic acid
d. FADH2
ANS: C

PTS: 1

REF: 27

BLM: Higher Order

24. Why does anaerobic respiration take place when O2 is unavailable?
a. to continue releasing at least some energy from molecules and generate ATP
b. to prevent cell death
c. to make use of available glucose
d. to prevent protein breakdown
ANS: A

PTS: 1

REF: 31

BLM: Higher Order

25. What does chemiosmosis do?
a. releases CO2
b. extracts energy from an H+ concentration gradient
c. reduces NAD
d. ferments pyruvic acid to lactic acid
ANS: B

PTS: 1

REF: 30

BLM: Higher Order

26. Which statement is correct for the electron transport chains?
a. They are “circuits” for small amounts of electricity to pass through.
b. They are made of proteins.
c. They deliver energy to cytochrome to pump H+ into the intermembrane space.
d. They do not need oxygen to be available.
ANS: C

PTS: 1

REF: 29

BLM: Higher Order

REF: 25

BLM: Remember

27. Where are cristae found?
a. lysosome
b. mitochondrion
c. nucleolus
d. nucleus
ANS: B

PTS: 1

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Chapter 2: Cell Physiology

28. Which of the following is NOT a correct association?
a. ATP/high-energy bonds
b. electron transport chain/mitochondrion
c. glycolysis/anaerobic
d. pyruvic acid/five-carbon molecule
ANS: D

PTS: 1

REF: 26

BLM: Higher Order

29. Which statement is correct for an anaerobic condition?
a. Oxygen is plenty.
b. The degradation of glucose cannot proceed beyond glycolysis.
c. Mitochondrial processing of nutrient molecules takes place.
d. It produces a high yield of oxygen molecules.
ANS: B
PTS: 1
REF: 31
30. What is the universal energy currency in cells?
a. ATP
b. glucose
c. glycogen

d. insulin
ANS: A

PTS: 1

REF: 24

BLM: Remember

BLM: Remember

31. Which statement regarding the citric acid cycle is NOT correct?
a. It occurs in the mitochondrial matrix.
b. Carbon dioxide is released.
c. Several ATP molecules are produced for each cycle.
d. Acetyl CoA and oxaloacetic CoA acid initially react to form citric acid.
ANS: C

PTS: 1

REF: 27

BLM: Remember

32. Which molecule directly enters the citric acid cycle?
a. acetyl CoA
b. adenosine diphosphate
c. citric acid
d. oxaloacetic acid
ANS: A

PTS: 1

REF: 27

BLM: Remember

33. What is the function of ATP synthase?
a. to act enzymatically
b. to build membranes
c. to carry hydrogen
d. to synthesize ATP
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Chapter 2: Cell Physiology

ANS: D

PTS: 1

REF: 29

BLM: Remember

REF: 29

BLM: Higher Order

REF: 26

BLM: Remember

REF: 26

BLM: Remember

34. Which statement is correct for NADH?
a. It is an energy carrier.
b. It plays a role in cellular respiration.
c. It is used in glycolysis.
d. It is used in the citric acid cycle.
ANS: A

PTS: 1

35. What is the purpose of glycolysis?
a. to produce citric acid
b. to liberate energy from glucose
c. to produce large numbers of ATP
d. to trap energy in FADH2
ANS: B

PTS: 1

36. What is the definition of aerobic?
a. in the blood
b. with carbon dioxide

c. with oxygen
d. without carbon dioxide
ANS: C

PTS: 1

37. Which statement is NOT correct about vaults?
a. They may play a role in drug resistance.
b. Their shape resembles octagonal barrels.
c. They are smaller than ribosomes.
d. They are a type of organelle.
ANS: C

PTS: 1

REF: 25

BLM: Remember

38. Which element is NOT a part of the cytoskeleton?
a. inclusions
b. intermediate filaments
c. microfilaments
d. microtubular lattice
ANS: A

PTS: 1

REF: 25

BLM: Remember

39. Which statement is correct regarding the bending movements of cilia and flagella?
a. They are accomplished by alternate solation and gelation of the cytosol.
b. They involve the alternate assembly and disassembly of actin filaments.
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Chapter 2: Cell Physiology

c. They are produced by the sliding of adjacent microtubule doublets past one another.
d. They are important in providing motility for many organisms but are not of any use in

humans.
ANS: C

PTS: 1

REF: 25

BLM: Remember

40. Which organelles contain oxidative enzymes?
a. peroxisomes and lysosomes
b. mitochondria and nucleus
c. lysosomes and vaults
d. ribosomes and microtublues
ANS: A

PTS: 1

REF: 25

BLM: Remember

41. Which statement is correct for glycolysis?
a. It yields two molecules of ATP for each molecule of glucose processed.
b. It always requires oxygen.
c. It takes place in the mitochondrial matrix.
d. It takes place in the mitochondrial inner membrane cristae.
ANS: A
PTS: 1
REF: 26
BLM: Higher Order
42. Which statement is correct for ATP synthase?
a. It transports hydrogen ions from the matrix to the intermembrane space of the

mitochondrion.
b. It is activated by the flow of hydrogen ions from the intermembrane space to the matrix.
c. It enzymatically converts ATP to ADP.
d. It yields two molecules of ATP.
ANS: B

PTS: 1

REF: 29

BLM: Remember

43. Which statement is correct for Nicotimamide adenine dinucleotide (NAD)?
a. It converts ADP + Pi to ATP.
b. It is found in the cytosol.
c. It is a hydrogen carrier molecule.
d. It is found in the cytosol and is a hydrogen carrier molecule.
ANS: C

PTS: 1

REF: 27

BLM: Remember

44. Which of the following is NOT an action of the cytosol?
a. duplication of chromosomes
b. enzymatic regulation of intermediary metabolism
c. storage of fat and glycogen
d. synthesis of proteins for use in the cytosol
ANS: A

PTS: 1

REF: 25

BLM: Remember

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Chapter 2: Cell Physiology

45. What is the function of the microtrabecular lattice?
a. to maintain asymmetrical cell shapes
b. to suspend and functionally link the largest cytoskeletal elements and organelles
c. to provide cellular contractile systems
d. to serve as mechanical stiffeners
ANS: B

PTS: 1

REF: 25

BLM: Remember

46. Which of the following is NOT true of the cytoskeleton?
a. It supports the plasma membrane and is responsible for the particular shape, rigidity, and

spatial geometry of each different cell type.
b. It probably plays a role in regulating cell growth and division.
c. Its elements are all rigid and permanent structures.
d. It is responsible for cell contraction and cell movements.
ANS: C

PTS: 1

REF: 34

BLM: Remember

47. In which cells are actin and myosin filaments commonly found?
a. epithelial cells
b. muscle cells
c. nerve cells
d. red blood cells
ANS: B
PTS: 1
REF: 24
BLM: Remember
48. Which statement regarding microfilaments is NOT correct?
a. They serve as mechanical stiffeners for microvilli.
b. They are composed of actin subunits.
c. They are the smallest elements of the cytoskeleton.
d. They form mitotic spindles.
ANS: D

PTS: 1

REF: 25

BLM: Remember

49. Which of the following is correct about intermediate filaments?
a. They comprise mitotic spindles.
b. They are important in cell regions subject to mechanical stress.
c. They comprise cilia.
d. They comprise flagella.
ANS: B

PTS: 1

REF: 25

BLM: Remember

50. Which statement is FALSE?
a. The number of mitochondria per cell varies depending on the energy needs of each

particular cell type.
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Chapter 2: Cell Physiology

b. DNA is enclosed within the cell nucleus and mitochondria.
c. The mitochondria DNA in our cells are copies of our parent’s.
d. Mitochondria DNA has a limited ability to repair.
ANS: C

PTS: 1

REF: 25

BLM: Higher Order

51. Which of the following organelles is NOT membrane-bound?

a. lysosome
b. ribosome
c. mitochondrion
d. perioxisomes
ANS: B
BLM: Remember

PTS: 1

REF: 25

OBJ: Remember

TRUE/FALSE
1.

Electron microscopes are about 100 times more powerful than light microscopes.
ANS: T

2.

PTS: 1

DNA’s genetic code is transcribed into messenger RNA.
ANS: T

PTS: 1

3.

The cytosol is the gel-like mass of the cytoplasm.

4.

DNA in the nucleus has the genetic instructions to make enzymatic proteins.

ANS: T

ANS: T
5.

PTS: 1

The nucleus indirectly governs most cellular activities by directing the kinds and amounts of
various enzymes and other proteins that are produced by the cell.
ANS: T

6.

PTS: 1

PTS: 1

The rough endoplasmic reticulum is most abundant in cells specialized for protein secretion,
whereas smooth endoplasmic reticulum is abundant in cells that specialize in lipid
metabolism.
ANS: T

PTS: 1
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Chapter 2: Cell Physiology

7.

Proteins synthesized by the endoplasmic reticulum become permanently separated from the
cytosol as soon as they have been synthesized.
ANS: T

8.

RER is most abundant in cells specialized for steroid production.
ANS: F

9.

PTS: 1

PTS: 1

The Golgi complex is functionally connected to the ER.
ANS: T

PTS: 1

10. The endoplasmic reticulum is one continuous organelle consisting of many tubules and

cisternae.
ANS: T

PTS: 1

11. The lysosomes are one site of protein synthesis.
ANS: F

PTS: 1

12. The smooth ER specializes in protein metabolism.
ANS: F

PTS: 1

13. Secretory vesicles are released to the exterior of the cell by means of the process of

phagocytosis.
ANS: F

PTS: 1

14. Secretory vesicles are about 200 times larger than transport vesicles.
ANS: T
PTS: 1
15. Coated vesicles enclose a representative mixture of proteins present in the Golgi sac before

budding off.
ANS: F

PTS: 1

16. All cell organelles are renewable.

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Chapter 2: Cell Physiology

ANS: T

PTS: 1

17. Mitochondria are presumably descendants of primitive bacterial cells.
ANS: T

PTS: 1

18. Endocytosis can be accomplished by phagocytosis and pinocytosis.
ANS: T

PTS: 1

19. Phagocytosis is a specialized form of endocytosis used for bringing in extracellular fluids.
ANS: F

PTS: 1

20. The peroxisomes mainly generate hydrogen peroxide.
ANS: T

PTS: 1

21. Glycolysis generates ATP from glucose with high efficiency.
ANS: F

PTS: 1

22. ATP synthase is located in the inner mitochondrial membrane.
ANS: T

PTS: 1

23. Most intermediary metabolism is accomplished in the cytosol.
ANS: T

PTS: 1

24. Oxidative phosphorylation generates the most ATP per glucose molecule.
ANS: T

PTS: 1

25. Dynein is a mitochondrial enzyme.
ANS: F

PTS: 1

26. Cytokinesis is the division of the nucleus during mitosis.
ANS: F

PTS: 1

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Chapter 2: Cell Physiology

27. Amoeboid movement is accomplished by transitions of the cytosol between a gel and a solid

state as a result of alternate assembly and disassembly respectively of actin filaments.
ANS: T

PTS: 1

28. The protective, waterproof outer layer of skin is formed by the tough skeleton of the micro

trabecular lattice that persists after the surface skin cells die.
ANS: F

PTS: 1

29. Cilia in the respiratory tract beat in the same direction to sweep inspired particles up and out

of the airways.
ANS: T

PTS: 1

30. Hockey is a winter sport that uses only aerobic energy supply.
ANS: F

PTS: 1

31. Lack of aerobic exercise can have negative health implications, such as heart disease and high

blood pressure.
ANS: T

PTS: 1

COMPLETION
1.

The three major subdivisions of a cell are the
, and the

, the
.

ANS:

plasma membrane, nucleus, cytoplasm nucleus,
cytoplasm, plasma membrane cytoplasm,
plasma membrane, nucleus
PTS: 1

2.

The fluid contained within all of the cells of the body is known collectively as
, and the fluid outside the cells is referred to as
.
ANS: intracellular fluid, extracellular fluid
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Chapter 2: Cell Physiology

PTS: 1
3.

The two major parts of the cell’s interior are the _
.

and the

ANS:

nucleus, cytoplasm cytoplasm,
nucleus
PTS: 1

RNA carries amino acids to the sites of protein synthesis in the

4.

cell.
ANS: Messenger
PTS: 1
5.

The
ER is the central packaging and discharge site for
molecules to be transported from the ER.
ANS: smooth
PTS: 1

6.

The signal-recognition protein recognizes both the
on the
ribosome and the
on the ER then delivers the proper
ribosome to the proper site on the rough ER for binding.
ANS: leader sequence, ribophorin
PTS: 1

7.

Insulin is a long

chain.

ANS: polypeptide
PTS: 1

8.

The ribosomes of the rough ER synthesize , whereas its membranous walls contain enzymes
essential for the synthesis of
.

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Chapter 2: Cell Physiology

ANS: proteins, lipids
PTS: 1
9.

The sarcoplasmic reticulum stores

ions.

ANS: calcium
PTS: 1
10. Products destined for intracellular transport are packaged in

, whereas products for export are packaged in

.

ANS: coated vesicles, secretory vesicles

PTS: 1
11.

refers to the process of an intracellular vesicle fusing with the
plasma membrane, then opening and emptying its contents to the exterior.
ANS: exocytosis
PTS: 1

is a protein responsible for pinching off an endocytic vesicle.

12.
ANS: Dynamin
PTS: 1

13. Foreign material to be attacked by lysosomal enzymes is brought into the cell by the process

of

.

ANS: endocytosis
PTS: 1
14. Lysosomes contain

enzymes that are capable of digesting and removing unwanted debris

from the cell.
ANS: hydrolytic

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Chapter 2: Cell Physiology

PTS: 1
15. Lysosomes that have completed their digestive activities are known as

.
ANS: residual bodies
PTS: 1

, an enzyme found in peroxisomes, decomposes potentially toxic

16.

hydrogen peroxide.
ANS: Catalase
PTS: 1
17. ADP and Pi are formed from the breakdown of the molecule

.

ANS:

adenosine triphosphate ATP
PTS: 1
18.

refers collectively to the large set of intracellular chemical
reactions that involve the degradation, synthesis, and transformation of small organic
molecules.
ANS: Intermediary metabolism
PTS: 1

19. The decomposition of hydrogen peroxide produces

and

molecules.
ANS:

water, oxygen oxygen,
water
PTS: 1

is a peroxisomal enzyme that breaks down hydrogen peroxide.

20.
ANS: Catalase

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Chapter 2: Cell Physiology

PTS: 1

21. One glucose molecule is converted into two molecules of

by

the end of glycolysis.
ANS: pyruvic acid
PTS: 1
22. The metabolism of acetyl CoA into the citric acid cycle depends on the availability of

for the cell.
ANS: oxygen
PTS: 1
23. The chemiosmotic mechanism involves the transport of hydrogen across the membrane of the

.
ANS: mitochondrion
PTS: 1

24. Adipose tissue stores

.

ANS: fat
PTS: 1

are the dominant structural and functional components of cilia and

25.

flagella.

ANS: Microtubules
PTS: 1
26. Microfilaments are composed of the protein

.

ANS: actin

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Chapter 2: Cell Physiology

PTS: 1
27. One of the diseases caused by neurofilament abnormalities is

.

ANS: amyotropic lateral sclerosis
PTS: 1
28. A cilium or flagellum originates from the

, a structure in the cell.

ANS: basal body
PTS: 1
MATCHING

Indicate which of the characteristics applies to each item by using the answer code
(options may be used more than once or not at all). a. glycolysis
b. citric acid cycle
c. oxidative phosphorylation
1.
2.
3.
4.
5.
6.
7.

directly uses inspired oxygen
does not directly use inspired oxygen
takes place in the cytosol
takes place in the mitochondrial matrix
takes place on the inner mitochondrial membrane
low yield of ATP
high yield of ATP

1. ANS: C
PTS: 1 2. ANS:
A
PTS: 1 3. ANS: A
PTS: 1 4. ANS: B
PTS: 1
5. ANS: C
PTS: 1 6. ANS:
A
PTS: 1

7. ANS: C
PTS: 1

Complete the sentences by matching the appropriate vesicle(s) by using the answer code
(options may be used more than once or not at all). a. transport vesicles
b. coated vesicles
c. secretory vesicles
8.

originate from the Golgi complex
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Chapter 2: Cell Physiology

9.
10.
11.
12.
13.
14.
15.

originate from the endoplasmic reticulum
contain newly synthesized molecules
contents emptied to the exterior by exocytosis
enclosed in a clathrin framework
fuse with and enter the Golgi complex

contents become concentrated over time
contents are unloaded at a specific intracellular compartment

8.

ANS: B

PTS: 1

9.

ANS: A

PTS: 1

10. ANS: A

PTS: 1

11. ANS: C

PTS: 1

12. ANS: B

PTS: 1

13. ANS: A

PTS: 1

14. ANS: C

PTS: 1

15. ANS: B

PTS: 1

Match the term to its description by using the answer code (options may be used more than
once or not at all).
a. plasma membrane
b. nucleus
c. cytoplasm
d. cytosol
e. organelles
f. cytoskeleton
16.
17.
18.
19.
20.
21.
22.
23.
24.

houses the cell’s DNA
responsible for cell shape and movement
highly organized membrane-bound intracellular structures

selectively controls movement of molecules between the intracellular fluid and the
extracellular fluid
consists of organelles and cytosol
site of intermediary metabolism
permit incompatible chemical reactions to occur simultaneously in the cell
separates contents of the cell from its surroundings
site of fat and glycogen storage

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Chapter 2: Cell Physiology

16. ANS: B

PTS: 1

17. ANS: F

PTS: 1

18. ANS: E

PTS: 1

19. ANS: A

PTS: 1

20. ANS: C

PTS: 1

21. ANS: D

PTS: 1

22. ANS: E

PTS: 1

23. ANS: A

PTS: 1

24. ANS: D

PTS: 1

Match the term to its description by using the answer code (options may be used more than
once or not at all).
a. ER
b. Golgi complex
c. lysosome
d. peroxisome
e. mitochondrion
f. vault
g. free ribosome

h. microtubule
i. microfilament
25.
26.
27.
28.
29.
30.
31.
32.
33.

contains powerful oxidative enzymes important in detoxifying various wastes
an important component of cilia and flagella
one continuous extensive organelle consisting of a network of tubules and flattened filament
removes unwanted cellular debris and foreign material
the powerhouse of the cell
acts as a mechanical stiffener
synthesizes proteins for use in the cytosol
consists of stacks of flattened sacs
shaped like an octagonal barrel

25. ANS: D PTS: 1 26. ANS: H
PTS: 1 27. ANS: A
PTS: 1
28. ANS: C PTS: 1 29. ANS: E
PTS: 1 30. ANS: I
PTS: 1

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Chapter 2: Cell Physiology

31. ANS: G PTS: 1 32. ANS: B
PTS: 1
33. ANS: F
PTS: 1

Match the term to its description by using the answer code (options may be used more than
once or not at all). a. flagella
b. cilia
c. microvilli
34.
35.
36.
37.
38.
39.
40.

hair-like motile protrusions
increase the surface area of the small intestine epithelium
sweep mucus and debris out of respiratory airways
increase the surface area of the kidney tubules
enable sperm to move
whip-like appendages
guide egg to oviduct

34. ANS: B PTS: 1 35. ANS: C
PTS: 1 36. ANS: B
PTS: 1
37. ANS: C PTS: 1 38. ANS: A
PTS: 1
39. ANS: A PTS: 1 40. ANS: B
PTS: 1

Match the term to its description by using the answer code (options may be used more than
once or not at all). a. microtubules
b. microfilaments
c. intermediate filaments
d. microtrabecular lattice
41.
42.
43.
44.
45.
46.
47.
48.
49.
50.
51.
52.

the largest of the cytoskeletal elements
present in parts of the cell subject to mechanical stress
smallest element visible with a conventional electron microscope

consist of actin
organizes the glycolytic enzymes in a sequential alignment
form the mitotic spindle
essential for creating and maintaining an asymmetrical cell shape
composed of tubulin
provide a pathway for axonal transport
visible only with a high-voltage electron microscope
play(s) a key role in muscle contraction
slide past each other to cause ciliary bending
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Chapter 2: Cell Physiology

41. ANS: A PTS: 1 42. ANS: C
PTS: 1 43. ANS: B
PTS: 1
44. ANS: B PTS: 1 45. ANS: D
PTS: 1 46. ANS: A
PTS: 1
47. ANS: A PTS: 1 48. ANS: A
PTS: 1 49. ANS: A
PTS: 1
50. ANS: D PTS: 1 51. ANS: B
PTS: 1
52. ANS: A
PTS: 1

Match the cellular protein with the correct characteristic by using the answer code. a.
dynamin
b. tubulin
c. kinesin
d. actin
e. ribophorin
53.
54.
55.
56.
57.

causes pinching off of endocytic vesicles
serve as binding sites for ribosomes
comprises intermediate filaments
comprises microtubules
provides for transport of vesicles

53. ANS: A PTS: 1 54. ANS: E
PTS: 1 55. ANS: D
PTS: 1
56. ANS: B PTS: 1
57. ANS: C
PTS: 1
ESSAY
1. Describe the pathway that newly synthesized polypeptides take en route for secretion.
ANS:

Student responses will vary.
PTS: 1

2. Describe aerobic cellular respiration from a mechanistic point of view.
ANS:

Student responses will vary.
Copyright © 2013 Nelson Education Ltd.

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Chapter 2: Cell Physiology

PTS: 1
3. How is ATP synthesized via electron transport and oxidative phosphorylation?
ANS:

Student responses will vary.
PTS: 1
4. Describe the major aspects of the cytoskeleton.
ANS:

Student responses will vary.
PTS: 1

5. Describe the structure and function of cilia and flagella.
ANS:

Student responses will vary.
PTS: 1
PROBLEM
1. Michael is using the electron microscope at the hospital to review the structures of skeletal

muscle cells. He notices that the skeletal muscle cells have many nuclei and are loaded with
mitochondria. Why is this so?
ANS:

Student responses will vary.
PTS: 1
SHORT ANSWER
1. Describe the differences between rough ER and smooth ER.
ANS:

Student responses will vary.
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Chapter 2: Cell Physiology

PTS: 1

Copyright © 2013 Nelson Education Ltd.

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